The Rise of The Fallen
The Drow are a race of Faeries who dwell in The Shadowfell and certain caverns in The Underdark, mostly near Shadow Crossings. The Drow are sinsister, tempestuous, and most are thought of as somewhat mad. They are related to Eladin and Elves, and were once of a race called the Sidhe.
Drow suffer under a heavy racial burden. Though they can live to well over 300 years, as an Drow ages his mind begins to weaken. The Madness, as this condition is known, makes the eldest drowsubject to strange whims and fancies, along with the slow loss of their memories. This dementia manifests in a frighteningly large number of ways, not all of which are immediately evident.
Drow are also cured by the sun, as their ancient forebearers sided with The Seven against The Nine Heroes. Drow feel intense pain in sunlight, which hampers them greatly when they take actions in The World and The Feywild. Drow bear a powerful grudge against the Sidhe who are free to move as they wish during the day.